Company lists · Data refreshed September 2026

Top 25 Exploration drilling contractors based in India

Name: Exploration drilling contractors based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 171 companies tracked

RevenueBase identified 171 exploration drilling contractors headquartered in India as of September 2026 and tracks 11,656 professional contacts across them, including 667 with verified work emails. Mumbai is the largest hub.

This list covers exploration drilling contractors headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

171Companies

11,656Contacts tracked

667Verified emails

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The 25 largest exploration drilling contractors based in India

Ranked by team size

Top 25 of 171 exploration drilling contractors based in India, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to exploration drilling contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	John Energy Limited	Indirect evidence	Ahmadabad, IndiaHQ checked Sep 16, 2026	501-1,000	1,096 contacts →
	Indirect evidence “JEL is India based niche provider of oil & Gas Field serives.” Source: RevenueBase Database · checked Sep 16, 2026
2	Deep Industries Limited	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 16, 2026	501-1,000	714 contacts →
	Indirect evidence “Deep Industries Limited started in the year 1991, with a primary objective of catering the ever increasing demand for Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 16, 2026
3	Greatship	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	1,001-5,000	681 contacts →
	Indirect evidence “The GREATSHIP GROUP is a provider of quality offshore oilfield services, owning and operating a comprehensive range of new generation, technologically advanced vessels and modern…” Source: RevenueBase Database · checked Sep 16, 2026
4	HLS Asia Limited	Indirect evidence	Noida, IndiaHQ checked Sep 16, 2026	201-500	470 contacts →
	Indirect evidence “HLS Asia Limited (HLSA) is a joint venture company between Halliburton USA & Indian partners providing Wire-line Logging, Slickline, Perforation and related services to upstream…” Source: RevenueBase Database · checked Sep 16, 2026
5	OIL Field Instrumentation India Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	501-1,000	445 contacts →
	Indirect evidence “OFI-was founded in 1992 as an OEM for Mud Logging units / Mud logging services provider.” Source: RevenueBase Database · checked Sep 16, 2026
6	Quippo OIL And GAS Infrastructure Limited	Indirect evidence	Gurugram, IndiaHQ checked Sep 16, 2026	501-1,000	414 contacts →
	Indirect evidence “Quippo Oil and Gas Infrastructure Limited ("QOGIL"), incorporated in 2005, is India's leading infrastructure project and equipment financing company.” Source: RevenueBase Database · checked Sep 16, 2026
7	Coastal Marine Construction & Engineering LTD	Partial evidence	Mira Bhayander, IndiaHQ checked Sep 16, 2026	201-500	403 contacts →
	Partial evidence “COMACOE - Coastal Marine Construction & Engineering Ltd is an experienced marine services contractor with operations in multiple geographies offering a range of service over the…” Source: RevenueBase Database · checked Sep 16, 2026
8	AAC Mining Executors Group	Partial evidence	Jaipur, IndiaHQ checked Sep 16, 2026	201-500	366 contacts →
	Partial evidence “Mining Contractor with operations around the world.” Source: RevenueBase Database · checked Sep 16, 2026
9	Asian Energy Services Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	51-200	300 contacts →
	Indirect evidence “ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.” Source: RevenueBase Database · checked Sep 16, 2026
10	GTC Oilfield Services Limited	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 16, 2026	201-500	229 contacts →
	Indirect evidence “We are an Oil & Gas Service Provider Company incorporated in 2007.” Source: RevenueBase Database · checked Sep 16, 2026
11	Dynamic Drilling & Services	Partial evidence	New Delhi, IndiaHQ checked Sep 16, 2026	201-500	206 contacts →
	Partial evidence “Dynamic Drilling, is an Indian Offshore Oil and Gas Drilling Company incorporated under the Indian Companies act 1956 with an objective to carry out business in the field of…” Source: RevenueBase Database · checked Sep 16, 2026
12	PRD Rigs	Strong evidence	Perundurai, IndiaHQ checked Sep 16, 2026	201-500	138 contacts →
	Strong evidence “PRD Rigs is one of the leading drilling & exploration rig manufacturers in the world.” Source: RevenueBase Database · checked Sep 16, 2026
13	South Asia Consultancy	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 16, 2026	11-50	77 contacts →
	Indirect evidence “South Asia Consultancy is an ISO 9001 certified company with headquarter in Ahmedabad, Gujarat, providing oilfield services.SAC was established in 2014 by its sole proprietor Mr.” Source: RevenueBase Database · checked Sep 16, 2026
14	Gemco Kati Exploration P. LTD	Strong evidence	Chandrapur, IndiaHQ checked Sep 16, 2026	501-1,000	65 contacts →
	Strong evidence “We are one of oldest and experienced Exploration drilling company in central India based in Chandrapur (Maharashtra), established in 1980.” Source: RevenueBase Database · checked Sep 16, 2026
15	Geoservices Maritime Pvt. LTD	Indirect evidence	Navi Mumai, IndiaHQ checked Sep 16, 2026	51-200	61 contacts →
	Indirect evidence “To invest in a latest technology in order to fulfill efficiency and productivity to the fullest and provide the best quality survey services to the clients.” Source: RevenueBase Database · checked Sep 16, 2026
16	Soiltech India Private Limited	Strong evidence	Pune, IndiaHQ checked Sep 16, 2026	201-500	55 contacts →
	Strong evidence “Soiltech in involved in Geotechnical Consultancy, Exploration for minerals by Core drilling, Geophysical Consultancy and Laboratory testing for Construction materials” Source: RevenueBase Database · checked Sep 16, 2026
17	Shivganga Drillers Private Limited - Sgdpl	Indirect evidence	Indore, IndiaHQ checked Sep 16, 2026	201-500	42 contacts →
	Indirect evidence “ShivGanga Drillers Private Limited is a closely held private limited company promoted in 2005.” Source: RevenueBase Database · checked Sep 16, 2026
18	Geovale Services	Partial evidence	Kolkata, IndiaHQ checked Sep 16, 2026	11-50	39 contacts →
	Partial evidence “Solution providers to the global mineral exploration and mining industry.” Source: RevenueBase Database · checked Sep 16, 2026
19	Enquest Petrosolutions	Indirect evidence	Delhi, IndiaHQ checked Sep 16, 2026	11-50	38 contacts →
	Indirect evidence “We are a Total E&P Solutions provider.” Source: RevenueBase Database · checked Sep 16, 2026
20	Dalma Energy	Indirect evidence	Vadodara, IndiaHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
21	Kores India Ltd. Engineering Division	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	1,001-5,000	26 contacts →
	Indirect evidence “Kores Engineering was formed in 1985 as a part of strategic restructuring and diversification.” Source: RevenueBase Database · checked Sep 16, 2026
22	Kartikay Exploration & Mining Services Pvt.Ltd	Partial evidence	Nagpur, IndiaHQ checked Sep 16, 2026	51-200	25 contacts →
	Partial evidence “Kartikay Exploration and Mining Services Pvt Ltd" Nagpur, India is a leading company in the field of Mineral Exploration (Metallic/ Non-Metallic).” Source: RevenueBase Database · checked Sep 16, 2026
23	Capstone GEO Consultants	Partial evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “Capstone Geo Consultants is a leading single window service provider in ‘Mineral Exploration & Mining Consultation’; we are backed by a strong team of domain experts and motivated…” Source: RevenueBase Database · checked Sep 16, 2026
24	Steiger Geoscience And Engineering	Partial evidence	Hyderabad, IndiaHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Steiger is a European-based mineral exploration services provider focusing on high quality research and survey methods.” Source: RevenueBase Database · checked Sep 16, 2026
25	Prescott Venture Pvt. LTD	Partial evidence	Gandhinagar, IndiaHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “Prescott Venture Private Limited- Oil and Gas exploration, development, production, work-overs, operations & maintenance experts - corporate Gandhinagar Gujarat” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: exploration drilling contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names exploration drilling contractors.
Partial evidence: Its own public description names part of exploration drilling contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name exploration drilling contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 171 exploration drilling contractors based in India

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Exploration drilling contractors based in India at a glance

As of Sep 16, 2026

5.7%Verified-email coverage

68.2Average contacts per company

51-200Median size (employees)

11.7%Largest-city concentration · Mumbai

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 171 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among exploration drilling contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in India whose own description of what they do matches “exploration drilling contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names exploration drilling contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among exploration drilling contractors, and records with no verified work email. Companies headquartered outside India are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 667 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names exploration drilling contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many exploration drilling contractors are there based in India?

RevenueBase identified 171 exploration drilling contractors headquartered in India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

John Energy Limited, headquartered in Ahmadabad, tops this list with the largest team on record.

Which city has the most exploration drilling contractors?

Mumbai leads with 20 headquartered companies, followed by Hyderabad (13) and New Delhi (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 667 verified decision-maker contacts tracked across these 171 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.